Just wondering if anyone here has tried using the calipers off a 4 cyl VB/VC Commo? I'm pretty sure the 4 pot Commo had 13" rims so would that mean they'll fit inside the LJ's rims? I believe the pad surface area on these is greater than the original LJ ones.
LJ Brake Upgrade
Started by
_4door_LJ_
, Nov 26 2005 10:01 AM
13 replies to this topic
#2
_CHOPPER_
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Posted 26 November 2005 - 07:42 PM
The calipers from a 4 cyl VC/VH Commodore are virtually the same as the late ( 6/79 on ) UC alloy calipers. So gat a pair of LH - UC stubs, discs and the afore mentioned calipers. They use the same pads and rebuild kits as the VB - VS ( NOT HSV ) front calipers. So you get a large range of pads to use, from stock to race. Different front brake hoses would also be needed, as the fitting onto the caliper is totally different.
#3
dattoman
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Posted 26 November 2005 - 08:21 PM
All true
However the LC LJ 2 pot opposing caliper is a better caliper and I'd advise sticking with that
However the LC LJ 2 pot opposing caliper is a better caliper and I'd advise sticking with that
#4
_rorym_
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Posted 09 December 2005 - 10:42 AM
^^^^ What he said, and he is the expert.
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R
#5
_draglc_
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Posted 09 December 2005 - 12:29 PM
I have LH discs and UC girlock calipers on my LC and they work nicely.
#6
marius
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Posted 09 December 2005 - 12:37 PM
i have a 4door LC with four wheel drums and no booster. if i changed the front drums to LH discs and UC calipers, would it be possible to add a remote brake booster and have it all good to go? Obviously I'd have to displace the braking load onto the front so I don't go through the windscreen on brake application.
#7
_73LJWhiteSL_
_73LJWhiteSL_
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Posted 09 December 2005 - 06:33 PM
I'm running Slotted XU-1 Discs on the front (with the spacers) and the standard drums on the back with the standard booster (hopefully will have an XU-1 Booster soon) and it stops real good.
If the brakes arn't adjusted properly you will get really poor braking. Or if your rear wheel cylinders are shot like mine were
Steve
If the brakes arn't adjusted properly you will get really poor braking. Or if your rear wheel cylinders are shot like mine were
Steve
#8
_rorym_
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Posted 09 December 2005 - 07:03 PM
What Dattoman is inferring if I may, is the LC/J Girlings apply equal pressure on 2 fronts, i.e. from both sides equally, the LH ones apply one point of pressure and pulls the other one onto the disc. The former has been proven to be a better option in efficient braking terms.
(I surprise myself sometimes Neil!)
R
(I surprise myself sometimes Neil!)
R
#9
marius
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Posted 09 December 2005 - 07:22 PM
so if i were to update my brakes from four wheel drums, my best bet is to fit the lc/lj brake booster, rather than a remote one. But with the front discs, I've found it hard to find lc/lj discs. so, to repeat a dumb question: would lh/lx discs fit if I came across a good set at a wrecker?
#10
_rorym_
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Posted 09 December 2005 - 07:29 PM
LC/J are easy to find, there are a set on Ebay as we speak.
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#11
marius
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Posted 09 December 2005 - 08:49 PM
i see. obviously wasn't looking hard enough. thanks for all the info; this site has made the joys of Torana love a whole lot greater. 
now if i can just get some more hard folding together...
now if i can just get some more hard folding together...
#12
_73LJWhiteSL_
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Posted 10 December 2005 - 11:39 AM
Don't forget that you need the Disc stub axels to do a drum front to disc front conversion on a LC/J.
For Naths conversion i managed to find a complete front end (stub axles, calipers, discs and hubs) at a wreakers. In the end he got new slotted discs, and the car stops good now.
Also isn't LH/X/UC discs the same dimentions as the XU-1s?
Steve
For Naths conversion i managed to find a complete front end (stub axles, calipers, discs and hubs) at a wreakers. In the end he got new slotted discs, and the car stops good now.
Also isn't LH/X/UC discs the same dimentions as the XU-1s?
Steve
Edited by 73LJWhiteSL, 10 December 2005 - 11:40 AM.
#13
_draglc_
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Posted 10 December 2005 - 11:54 AM
marius, give andrew at milton performance a call 07 33532947 he should have the bits u need.
Edited by draglc, 10 December 2005 - 11:54 AM.
#14
dattoman
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Posted 10 December 2005 - 12:39 PM
Same dimensions but different discsDon't forget that you need the Disc stub axels to do a drum front to disc front conversion on a LC/J.
For Naths conversion i managed to find a complete front end (stub axles, calipers, discs and hubs) at a wreakers. In the end he got new slotted discs, and the car stops good now.
Also isn't LH/X/UC discs the same dimentions as the XU-1s?
Steve
You can't use LC-J calipers on LH discs
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